Design of intelligent CAN communication PCI card based on dual-port ram

This article introduces a kind of Intelligent PCI CAN bus card based on the dual-port RAM(DRAM). First, the whole scheme of the system is presented, then the designs of the hardware and software of Intelligent PCI card Based on CAN bus are expatiated and focused on the structure of DRAM, the general mechanism for the data exchange between the HOST and DEVICE and the communication in I/O and message oriented protocols. the design of whole system is universal, reliability, real-time and expandable.